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P0172 Diagnostic Trouble Code Discussion for January 2012

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2010 Chevrolet Equinox LT 2.4L MIL Lamp on VIN: 2CNALDEW9A
P0172: runnig rich. CODE PO172, TRUCK RUNS GOOD, NO PROBLEMS. ENGINE DATA IS CONSISTENT WITH FREEZE FRAME. I can only run OBDII scanner. everything is hooked up properly. If I disconnest PCV hose to air box after MAF the ltft goes to -10.0%. Both O2 s are working. Thanks for any ...
January 11, 2012
2004 Audi Allroad Quattro 2.7L MIL Lamp on VIN: WA1YD64BX4
P0172: bank 1 rich mix. The car originally came in with fuel trim rich codes. We found one o2 sensor not responding, and replaced it, drove thru monitors and codes came back. The freeze frame showed the indicated readings at idle, and fuel trim short: -12, and long term: -5.5, both b...
January 13, 2012
2005 Chevrolet Silverado 1500 5.3L No Start VIN: 1GCEK19T35
P0172: Fuel Trim System Rich (Bank 1). This truck runs very rich the lt fuel trim is about -17 on both banks but when it is cold the truck will not start sprayed intake for vacuum leaks none found, pickup does not have a fuel pressure regulator to leak fuel pressure is at 62 psi, ran vehicle with m...
January 16, 2012
2005 Chevrolet Silverado 1500 5.3L No Start VIN: 1GCEK19T35
P0172: Fuel Trim System Rich (Bank 1). This truck runs very rich the lt fuel trim is about -17 on both banks but when it is cold the truck will not start sprayed intake for vacuum leaks none found, pickup does not have a fuel pressure regulator to leak fuel pressure is at 62 psi, ran vehicle with m...
January 18, 2012
2001 Honda CR-V LX 2.0L MIL Lamp on VIN: JHLRD28451
P0172: Fuel System Too Rich (Bank 1). Vehicle has p0172, returns every time codes are cleared after a few road tests. STFT was at -18% along with LTFT. I adjusted the exhaust valves to a hair past the loose spec. 0.202mm or something like that. Fuel trim climbed up to -10% after that. My fuel pres...
January 19, 2012
2001 Honda CR-V LX 2.0L MIL Lamp on VIN: JHLRD28451
P0172: Fuel System Too Rich (Bank 1). Vehicle has p0172, returns every time codes are cleared after a few road tests. STFT was at -18% along with LTFT. I adjusted the exhaust valves to a hair past the loose spec. 0.202mm or something like that. Fuel trim climbed up to -10% after that. My fuel pres...
January 20, 2012
2010 Chevrolet Equinox LT 2.4L MIL Lamp on VIN: 2CNALDEW9A
P0172: runnig rich. CODE PO172, TRUCK RUNS GOOD, NO PROBLEMS. ENGINE DATA IS CONSISTENT WITH FREEZE FRAME. I can only run OBDII scanner. everything is hooked up properly. If I disconnest PCV hose to air box after MAF the ltft goes to -10.0%. Both O2 s are working. Thanks for any ...
January 11, 2012
2004 Audi Allroad Quattro 2.7L MIL Lamp on VIN: WA1YD64BX4
P0172: bank 1 rich mix. The car originally came in with fuel trim rich codes. We found one o2 sensor not responding, and replaced it, drove thru monitors and codes came back. The freeze frame showed the indicated readings at idle, and fuel trim short: -12, and long term: -5.5, both b...
January 13, 2012
2005 Chevrolet Silverado 1500 5.3L No Start VIN: 1GCEK19T35
P0172: Fuel Trim System Rich (Bank 1). This truck runs very rich the lt fuel trim is about -17 on both banks but when it is cold the truck will not start sprayed intake for vacuum leaks none found, pickup does not have a fuel pressure regulator to leak fuel pressure is at 62 psi, ran vehicle with m...
January 16, 2012
2005 Chevrolet Silverado 1500 5.3L No Start VIN: 1GCEK19T35
P0172: Fuel Trim System Rich (Bank 1). This truck runs very rich the lt fuel trim is about -17 on both banks but when it is cold the truck will not start sprayed intake for vacuum leaks none found, pickup does not have a fuel pressure regulator to leak fuel pressure is at 62 psi, ran vehicle with m...
January 18, 2012
2001 Honda CR-V LX 2.0L MIL Lamp on VIN: JHLRD28451
P0172: Fuel System Too Rich (Bank 1). Vehicle has p0172, returns every time codes are cleared after a few road tests. STFT was at -18% along with LTFT. I adjusted the exhaust valves to a hair past the loose spec. 0.202mm or something like that. Fuel trim climbed up to -10% after that. My fuel pres...
January 19, 2012
2001 Honda CR-V LX 2.0L MIL Lamp on VIN: JHLRD28451
P0172: Fuel System Too Rich (Bank 1). Vehicle has p0172, returns every time codes are cleared after a few road tests. STFT was at -18% along with LTFT. I adjusted the exhaust valves to a hair past the loose spec. 0.202mm or something like that. Fuel trim climbed up to -10% after that. My fuel pres...
January 20, 2012